package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.CategoryMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetMealMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;


@Service
public class CategoryServiceImpl implements CategoryService {

    @Autowired
    private CategoryMapper categoryMapper;
    @Autowired
    private DishMapper dishMapper;
    @Autowired
    private SetMealMapper setmealMapper;
    @Override
    public void addCategory(CategoryDTO categoryDTO) {

        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO,category);
        category.setStatus(0);
       // category.setCreateTime(LocalDateTime.now());
       // category.setUpdateTime(LocalDateTime.now());
       // category.setCreateUser(BaseContext.getCurrentId());
       // category.setUpdateUser(BaseContext.getCurrentId());
//
        categoryMapper.addCategory(category);
    }

    @Override
    public PageResult pageQuery(CategoryPageQueryDTO categoryPageQueryDTO) {

        PageHelper.startPage(categoryPageQueryDTO.getPage(),categoryPageQueryDTO.getPageSize());
         Page<Category> page=categoryMapper.pageQuery(categoryPageQueryDTO);
        long total = page.getTotal();
        List<Category> result = page.getResult();


        return  new PageResult(total,result);
    }

    @Override
    public void update(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO,category);
       // category.setUpdateTime(LocalDateTime.now());
       // category.setUpdateUser(BaseContext.getCurrentId());
        categoryMapper.updateCategory(category);
    }

    @Override
    public void startOrStop(int status, Long id) {
        Category category = Category.builder()
                .id(id)
                .status(status)
                .build();
        categoryMapper.updateCategory(category);
    }

    @Override
    public void deleteById(Long id) {
        Integer count = dishMapper.countByCategoryId(id);
        if(count>0){
            throw new DeletionNotAllowedException(MessageConstant.DISH_BE_RELATED_BY_SETMEAL);
        }
        Integer count1 = setmealMapper.countByCategoryId(id);
        if(count1>0){
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_SETMEAL);
        }
        categoryMapper.deleteById(id);
    }

    /**
     * 根据类型查询分类
     * @param type
     * @return
     */
    public List<Category> list(Integer type) {
        return categoryMapper.list(type);
    }
}
